EP2501925B1 - Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy - Google Patents

Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy Download PDF

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Publication number
EP2501925B1
EP2501925B1 EP09796135.3A EP09796135A EP2501925B1 EP 2501925 B1 EP2501925 B1 EP 2501925B1 EP 09796135 A EP09796135 A EP 09796135A EP 2501925 B1 EP2501925 B1 EP 2501925B1
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EP
European Patent Office
Prior art keywords
energy
tank
generator
stream
sun
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EP09796135.3A
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German (de)
French (fr)
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EP2501925A1 (en
Inventor
Dariusz Krzysztof Iwanowski
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/001—Devices for producing mechanical power from solar energy having photovoltaic cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/18—Combinations of wind motors with apparatus storing energy storing heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • This invention relates to an electrical power plant and more particularly to an renewable energy electrical power plant, and more particularly to an renewable energy electrical power plant having an energy store in temperature-pressure tank and producing constant stream of electrical energy.
  • Subject of the invention is a method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy making possible conversion of renewable energy variable stream, especially of wind, tide and the sun, to constant stream of electrical energy.
  • the patent EP 1577549 describes an apparatus for storing thermal energy and generating electricity, where wind or sun energy, or low-cost baseload electricity from a power grid, is used to heat a solid heat storage medium. Otherwise usage of fossil fuels is foreseen so emission of some exhaust gases and dusts is unavoidable.
  • the patent WO 2006/007733 describes an electric power plant with thermal storage medium, where electrical energy or hot exhaust gases are used to heat a solid heat storage medium. In an object of the patent all of energy is transmitted through the solid heat storage medium and results of this are significant losses of energy.
  • the patent US 5384489 describes a wind-powered electricity generating system with energy storage, where wind energy is used to heat a heat transfer fluid, which is stated to be at atmospheric pressure. Because of that the system cannot be used to store energy at high temperatures especially exceeding the boiling point of the heat transfer fluid.
  • the system is equipped with special electrical generator which has separate collector to feed load of the system and another collector to feed heater of the heat transfer fluid. The heater is fed by the generator when energy production exceeds or is below minimum demand of the load.
  • a method of renewable energy storage according to claim 1 is herewith disclosed.
  • fig. 1 is showing system for storing renewable energy especially of wind and tides
  • fig. 2 is showing system for storing renewable energy especially of the sun.
  • Wind or tides turbine rotor 1 in example of realization according to fig. 1 , is driven by variable energy stream of wind or water. Rotor 1 is converting this energy to mechanical energy driving generator 2, which converts it to electrical energy. Part of electrical energy steered by control system 3 is converted by converter 4 to electrical energy with parameters proper to the electrical grid. The rest part of electrical energy, steered by control system 3 is transferred through regulation-switching module 5 to temperature-pressure tank 6, where heating module 7 is converting this energy to heat of substance in tank. During the accumulation of energy in tank temperature and pressure are increasing. Steered by control system 3 pressing-valve module 8 is introducing transmission agent to located in temperature-pressure tank 6 heat exchanger 9.
  • transformer 16 can be used. Moreover transformer 16 power can be lower than power of generator 2.
  • the system steered by control system 3 can work as the stable electrical energy source without connection to the grid.
  • Temperature-pressure tank 6 can be artificial or natural.
  • Stream of the sun energy is conducted on mirror 17 and heater 18.
  • Mirror 17 steered by control system 3 is reflecting part of the sun energy in direction of heating module 7 located in temperature-pressure tank 6, which module 7 is converting energy to heat of substance in tank.
  • Pressing-valve module 20 steered by control system 3 introduces transmission agent to heater 18.
  • Agent, after being heated in heater 18, as the gas with pressure through valve 19 steered by control system 3 is given to turbine 11 supply circuit.
  • Pressing-valve module 8 steered by control system 3 introduces transmission agent to heat exchanger 9 located in temperature-pressure tank 6.
  • transformer 16 can be used. Moreover transformer 16 power can be lower than power collected and transmitted by mirror 17 and heater 18.
  • the system steered by control system 3 can work as the stable electrical energy source without connection to the grid.
  • Temperature-pressure tank 6 can be artificial or natural.
  • the method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy can be used as a constant, stable electrical energy source which can be connected to the electrical grid or can work as independent source and can supply electricity where it is needed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Eletrric Generators (AREA)
  • Wind Motors (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Description

    Technical Field
  • This invention relates to an electrical power plant and more particularly to an renewable energy electrical power plant, and more particularly to an renewable energy electrical power plant having an energy store in temperature-pressure tank and producing constant stream of electrical energy.
  • Subject of the invention is a method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy making possible conversion of renewable energy variable stream, especially of wind, tide and the sun, to constant stream of electrical energy.
    • Background Art
  • Power plants for producing electricity from many different energy sources including renewable energy sources, nuclear energy and fossil fuels are known.
  • Most of power plants can produce constant stream of electrical energy all the time because fuels can be stored (biomass, nuclear fuel, coal, gas) and burned/used when necessary. Unfortunately burning/usage of those fuels produce exhaust gases, dusts and nuclear wastes, which devastate environment. Some of power plants use a renewable energy of wind, tide or sunlight and don't produce exhaust gases, dusts and nuclear wastes. Unfortunately those electrical energy sources are variable during the time and these power plants are not able to produce constant stream of electrical energy. To avoid this disadvantage an energy storage solution are used.
  • Description of patent no JP2240401 (A ) shows method of energy store in pressured substance in pressure accumulator.
  • Description of patent no FR2891095 (A1 ) shows method of energy store in heated substance in tank with water heated in the sun panels.
  • Description of patent no JP57146004 (A ) shows method of energy store in heated substance in heat accumulator.
  • The patent EP 1577549 describes an apparatus for storing thermal energy and generating electricity, where wind or sun energy, or low-cost baseload electricity from a power grid, is used to heat a solid heat storage medium. Otherwise usage of fossil fuels is foreseen so emission of some exhaust gases and dusts is unavoidable.
  • The patent WO 2006/007733 describes an electric power plant with thermal storage medium, where electrical energy or hot exhaust gases are used to heat a solid heat storage medium. In an object of the patent all of energy is transmitted through the solid heat storage medium and results of this are significant losses of energy.
  • The patent US 5384489 describes a wind-powered electricity generating system with energy storage, where wind energy is used to heat a heat transfer fluid, which is stated to be at atmospheric pressure. Because of that the system cannot be used to store energy at high temperatures especially exceeding the boiling point of the heat transfer fluid. The system is equipped with special electrical generator which has separate collector to feed load of the system and another collector to feed heater of the heat transfer fluid. The heater is fed by the generator when energy production exceeds or is below minimum demand of the load.
    • Summary of Invention
  • A method of renewable energy storage according to claim 1 is herewith disclosed.
  • A system suitable to carry out the method of claim 1 is disclosed in claim 2. The dependent claims specify other preferred embodiments of the invention.
    • Brief Description of Drawings
  • The subject of the invention in examples of realization is shown on drawing, where fig. 1 is showing system for storing renewable energy especially of wind and tides, fig. 2 is showing system for storing renewable energy especially of the sun.
    • Description of Embodiments
  • Wind or tides turbine rotor 1, in example of realization according to fig. 1, is driven by variable energy stream of wind or water. Rotor 1 is converting this energy to mechanical energy driving generator 2, which converts it to electrical energy. Part of electrical energy steered by control system 3 is converted by converter 4 to electrical energy with parameters proper to the electrical grid. The rest part of electrical energy, steered by control system 3 is transferred through regulation-switching module 5 to temperature-pressure tank 6, where heating module 7 is converting this energy to heat of substance in tank. During the accumulation of energy in tank temperature and pressure are increasing. Steered by control system 3 pressing-valve module 8 is introducing transmission agent to located in temperature-pressure tank 6 heat exchanger 9. Agent, after being heated in heat exchanger 9, as the gas with pressure by valve 10 steered by control system 3 is given to turbine 11, which drives electrical generator 12. Parameters of produced energy are steered by control system 3 with control module 13. Transmission agent after passage through turbine 11 and the pressure decreasing is cooled in heat exchanger 14, where additional stream of heat is received. Renewable energy stream sensor 15 gives the information to control system 3 about actual power of wind or tides stream. It gives possibility of fast reaction of the system on a change of renewable energy stream and energy produced by generator 2. Proper steering of: converter 4, pressing-valve module 8, valve 10 and heat exchanger 14 in transmission agent circuit, control module 13 of generator 12, and the using of energy accumulated in rotating mass of turbine rotor 1 gives possibility of receiving constant stream of electrical energy introduced to the grid. If it is needed, while energy stream of wind or tides is present, it is possible the simultaneous work of generator 2 with converter 4 and generator 12 what gives even two times bigger electrical energy stream than in normal situation. If conversion of voltage produced by converter 4 and/or generator 12 to voltage of electrical grid is needed transformer 16 can be used. Moreover transformer 16 power can be lower than power of generator 2. The system steered by control system 3 can work as the stable electrical energy source without connection to the grid. Temperature-pressure tank 6 can be artificial or natural.
  • Stream of the sun energy, in example of realization according to fig. 2, is conducted on mirror 17 and heater 18. Mirror 17 steered by control system 3 is reflecting part of the sun energy in direction of heating module 7 located in temperature-pressure tank 6, which module 7 is converting energy to heat of substance in tank. During accumulation energy in tank temperature and pressure is increasing. Pressing-valve module 20 steered by control system 3 introduces transmission agent to heater 18. Agent, after being heated in heater 18, as the gas with pressure through valve 19 steered by control system 3 is given to turbine 11 supply circuit. Pressing-valve module 8 steered by control system 3 introduces transmission agent to heat exchanger 9 located in temperature-pressure tank 6. Agent, after being heated in heat exchanger 9, as the gas with pressure through valve 10 steered by control system 3 is given to turbine 11, which drives electrical generator 12. Parameters of produced energy are steered by control system 3 with control module 13. Transmission agent after passage through turbine 11 and the pressure decreasing is cooled in heat exchanger 14, where additional stream of heat is received. Renewable energy stream sensor 15 gives the information about actual power the sun energy stream for control system 3. It gives possibility of fast reaction of the system on a change of the sun energy stream and in result to change of energy steered by mirror 17 on heating module 7 and heater 18. Proper steering of: pressing- valve modules 8 and 20, valves 10 and 19 and heat exchanger 14 in transmission agent circuit, control module 13 of generator 12 gives possibility of receive constant stream of electrical energy introduced to the grid. If it is needed, while energy stream of the sun is present, it is possible the simultaneous work of heater 18 and heat exchanger 9 what gives even two times bigger stream of transmission agent which drives turbine 11 and generator 12 and in result two times bigger electrical energy stream than normal situation. If conversion of voltage produced by generator 12 to voltage of electrical grid is needed transformer 16 can be used. Moreover transformer 16 power can be lower than power collected and transmitted by mirror 17 and heater 18. The system steered by control system 3 can work as the stable electrical energy source without connection to the grid. Temperature-pressure tank 6 can be artificial or natural.
    • Industrial Applicability
  • The method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy can be used as a constant, stable electrical energy source which can be connected to the electrical grid or can work as independent source and can supply electricity where it is needed.

Claims (12)

  1. Method of renewable energy storage comprising the step of filling a tank with a substance held at high temperature and pressure for conversion into electrical energy characterized by the step of accumulating energy by heating the substance in the tank (6) and thereby increasing pressure and temperature of the substance; use of a
    sensor (15) to give the information to a control system (3) about an actual stream of renewable energy and based on this information, the control system (3) steers: a converter (4), a valve module (8), a first heat exchanger (9), a valve (10), a turbine (11), a second exchanger (14) and a control module (13) of an additional generator (12); the control system (3) uses the energy accumulated in the rotating mass of the turbine (11) to generate electrical energy which is transferred to the grid.
  2. System for renewable energy storage adapted to carry out the method of claim 1 comprising a turbine rotor (1), a generator (2), a regulation-switching module (5), a heating module (7), a sensor (15), a control system (3), a converter (4), a valve module (8), a valve (10) and a first heat exchanger (14).
  3. System according claim 2, characterized in that heat accumulated in the tank (6) is transferred to a transmission agent in a heat exchanger (9) and then diverted through valve (10) to the turbine (11) in order to drive the generator (12).
  4. System according claim 2 further comprising a converter (4).
  5. System according claim 2 further comprising a transformer (16).
  6. System according claim 2, wherein the control system (3) is suitable to generate can work as stable electrical energy source without connection to the grid.
  7. System according claim 2, wherein the heat exchanger (14) can produce stream of heat, which can be used for other purposes.
  8. System according claim 2, characterized in that the tank (6) can be made as artificial or natural.
  9. System according claim 2, characterized in that renewable energy of sun can be used directly for heating substance in the tank (6), without any additional conversion.
  10. System according claim 9, characterized in that part of sun energy is used for direct heating of transmission agent, which as gas with pressure is given to turbine (11) drives electrical generator (12).
  11. System according claim 9, characterized in that generator (12) fed by energy from tank (6) and/or part of sun energy has lower power than power of sun energy stream.
  12. System according claim 9, characterized in that when sun energy stream is present simultaneously using of sun energy and energy stored in tank (6) gives possibility to receive higher output power of system.
EP09796135.3A 2009-11-18 2009-11-18 Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy Active EP2501925B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09796135T PL2501925T3 (en) 2009-11-18 2009-11-18 Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/PL2009/050035 WO2011062514A1 (en) 2009-11-18 2009-11-18 Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy

Publications (2)

Publication Number Publication Date
EP2501925A1 EP2501925A1 (en) 2012-09-26
EP2501925B1 true EP2501925B1 (en) 2020-07-15

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EP09796135.3A Active EP2501925B1 (en) 2009-11-18 2009-11-18 Method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy

Country Status (8)

Country Link
US (1) US9347436B2 (en)
EP (1) EP2501925B1 (en)
CN (1) CN102918260B (en)
CA (1) CA2781222C (en)
DK (1) DK2501925T3 (en)
ES (1) ES2873099T3 (en)
PL (1) PL2501925T3 (en)
WO (1) WO2011062514A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9168821B1 (en) * 2014-09-09 2015-10-27 Borgwarner Inc. Regenerative energy system

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Also Published As

Publication number Publication date
CN102918260A (en) 2013-02-06
CA2781222A1 (en) 2011-05-26
CN102918260B (en) 2015-10-07
US9347436B2 (en) 2016-05-24
ES2873099T3 (en) 2021-11-03
EP2501925A1 (en) 2012-09-26
CA2781222C (en) 2017-05-16
DK2501925T3 (en) 2020-10-19
US20120223533A1 (en) 2012-09-06
WO2011062514A1 (en) 2011-05-26
PL2501925T3 (en) 2021-02-08

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